Night Vision [upd] -

There are two primary ways that night vision devices (NVDs) "create" sight in the dark:

Night vision technology has transformed from a bulky World War II experiment into a precise tool used by military forces , law enforcement, and outdoor enthusiasts. By bridging the gap between what the human eye can see and the hidden world of the infrared spectrum, these devices have fundamentally changed how we operate after the sun sets. night vision

Night vision: how do these devices and technologies work? - APEM There are two primary ways that night vision